The coccyx (pronounced KOK-six) is the small bone located at the very bottom of the spine. It's commonly referred to as the tailbone.
More Details About the Coccyx:
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Structure: The coccyx is formed from 3 to 5 fused vertebrae. These vertebrae are much smaller than those in the rest of the spine.
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Function: While often considered vestigial (having lost its original function through evolution), the coccyx serves important purposes:
- Attachment for muscles and ligaments: Several muscles of the pelvic floor and ligaments attach to the coccyx, providing support and stability.
- Weight-bearing when sitting: When you sit, the coccyx helps to distribute your weight.
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Clinical Significance: The coccyx can be a source of pain (coccydynia), often caused by injury (such as a fall), childbirth, or prolonged sitting.
In summary, the coccyx is the tailbone, a small bone at the base of the spine composed of fused vertebrae, serving as an attachment point for muscles and ligaments and aiding in weight-bearing while sitting.
